In Thai society gender discrimination is seen in different types of labor, occupational groups, employment conditions and forms of labor force participation. Therefore, the reasons for a gender gap may differ by class. In social groups with higher income and education level, women have more opportunities to choose the occupations than the lower-class groups. However, women are not promoting opportunities for top-level positions. This leads to gender disparity in wages and promotion.
The gender disparity may encourage many females to work in the ‘moonlighting’ sector, (which means that working a second job after normal business hours in the evening or night) the females will get the low wages without promotion. This situation will lead to many social problems and expand the gender disparity in Thai society.